Dynamic Frequency Scaling and Dynamic Voltage Scaling

1. CPU Response Time
2. Throughput of the CPU

Performance  Clock Frequency                
Power Consumption  Clock Frequency

• Performance: This Frequency Scaling Algorithm statically fixes the frequency of the CPU to its highest possible value. This increases the Power Consumption by the CPU
• Powersave: This Frequency Scaling Algorithm Statically fixes the frequency of the CPU to its lowest possible value. This takes it toll on the performance of the system.
• Conservative: This Frequency Scaling Algorithm adjusts the frequency of the CPU to a certain minimum possible value so as to keep the CPU load below a certain percentage. This algorithm tries to optimize the power consumption while keeping the power consumption.